Extrinsic 17048-1

{
  "heartbeat": {
    "blockNumber": 17047,
    "sessionIndex": 284,
    "validatorsLen": 1,
    "authorityIndex": 0
  },
  "signature": "0x7203a682ed8feda0ecb4267ff1aa79b5b3f1b1c64409334d3bb3236e5b938030a82141bb01a382cffbc75a391536a12010ee85ab1ea032cb97154843ac78188b"
}